The most frequently reported abnormal MRI finding in migraine is the presence of high signal white matter foci (WMF) on long TR images. Recently, WMF have been distinguished in periventricular WMF (PVF), when contiguous to ventricles, and deep WMF (DF), when far from these. DF, but not PVF, appear positively correlated with cerebrovascular risk factors and… (More)
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